GEOLOGY

Detailed explanation-1: -Electricity and magnetism are two related phenomena produced by the electromagnetic force. Together, they form electromagnetism. A moving electric charge generates a magnetic field. A magnetic field induces electric charge movement, producing an electric current.

Detailed explanation-2: -Static magnetic fields are created by magnets or charges that move at a steady flow (current), such as in direct current (DC) electricity. They exert an attracting force on metallic objects, and so magnets are commonly used for this purpose.

Detailed explanation-3: -3) Electricity and magnetism are essentially two aspects of the same thing, because a changing electric field creates a magnetic field, and a changing magnetic field creates an electric field. (This is why physicists usually refer to “electromagnetism” or “electromagnetic” forces together, rather than separately.)

Detailed explanation-4: -Magnets have North and South poles. Like poles repel while opposite poles attract. Similarly, when hairs become charged with like charges using the Van de Graff generator, they repel each other.

Detailed explanation-5: -The statement which is true about electromagnets is. 4)these magnet work only when electric current passed through them. Without electricity these magnets do not work, these magnets are best examples of the magnetic effect of the electrical flow.